Opinion on Wall Street said the matter could have gone either way, but in the end Akebia Therapeutics Inc.’s vadadustat, a HIF prolyl-hydroxylase inhibitor for anemia caused by chronic kidney disease (CKD), garnered a complete response letter (CRL) instead of approval from the FDA. The news slammed Akebia shares (NASDAQ:AKBA), which closed at 82 cents, down $1.61, or 66%. Specifically, the agency said that the data in the NDA do not support a favorable benefit-risk assessment of vadadustat in dialysis-dependent (DD) and non-DDs patients.